CN219705077U - Small-size general aircraft fuselage maintenance is with operation platform - Google Patents
Small-size general aircraft fuselage maintenance is with operation platform Download PDFInfo
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Abstract
The utility model discloses a small-sized general aircraft body maintenance work platform, which comprises a foundation frame and a clamping mechanism, wherein the foundation frame is fixedly connected with the clamping mechanism; the foundation frame is of a cuboid structure and is adjustable in height, and a plurality of groups of travelling wheels are arranged at the bottom; the clamping mechanisms are multiple groups and assembled at the top of the foundation frame through sliding mechanisms, the clamping mechanisms are vertically arranged at the top of the foundation frame and are distributed at intervals in the length direction of the foundation frame, and the assembling clamping mechanisms are provided with mutually independent displacement driving mechanisms at the top of the foundation frame; each assembly clamping mechanism is used for penetrating, clamping and fixing the machine body to be clamped. The utility model is designed aiming at the particularity of the small general aircraft, is beneficial to flexible realization of maintenance operation when the maintenance operation is carried out on the airframe to be maintained, has easy and convenient maintenance process and has strong practicability in the maintenance operation of the airframe of the small general aircraft.
Description
Technical Field
The utility model relates to maintenance equipment of a small general aircraft, in particular to an operation platform for maintenance of a small general aircraft body.
Background
The small general aircraft has a fuselage length of about 6-8 m, a fuselage height of about 2.3-2.8 m, a wingspan of about 8-11 m, an empty weight of about 350-500 kg, and a seat of about 2-6 seats, and is a common private aircraft and coach, such as a cessna 172 aircraft or a PA-44-180 aircraft. The aircraft is damaged and maintained in the service period, large-sized aircrafts such as boeing, air bus and the like do not need to enter a specific dock place for maintenance, and the technical requirements on maintenance places and facilities are relatively low.
At present, no special maintenance operation platform is used for maintenance of the fuselage of a small general aircraft, and a traditional and non-standard maintenance mode is adopted. Specifically, the body barrel structure without the landing gear is fixed on the ground through a cushion block, or is fixed on a support bracket through the cooperation of a tightening belt and the cushion block, and an operator performs climbing operation on the body through a ladder; if the displacement operation of the fuselage is involved, the fuselage (or an attached support bracket) needs to be suspended from the carrying platform and secured in cooperation with the lacing tape and the spacer blocks. The lack of a maintenance mode of a special maintenance operation platform is flexible and poor in convenience in the maintenance operation process, so that the maintenance operation efficiency is low, and potential safety hazards exist to a certain extent for fixing the machine body.
Therefore, in view of the above-mentioned special nature of the small general-purpose aircraft and the technical shortcomings of the existing fuselage maintenance work, it is necessary to design a maintenance work tool that is flexible, convenient and safe to use.
Disclosure of Invention
The technical purpose of the utility model is that: aiming at the particularity of the small general aircraft and the defects of the existing maintenance technology for the small general aircraft fuselage, the working platform for maintenance of the small general aircraft fuselage, which is beneficial to flexible, convenient and safe maintenance operation, is provided.
The technical aim of the utility model is achieved by the following technical scheme, namely a small-sized general aircraft fuselage maintenance working platform, which comprises a foundation frame and a clamping mechanism;
the foundation frame is of a cuboid structure and is height-adjustable, and a plurality of groups of travelling wheels are arranged at the bottom of the foundation frame;
the clamping mechanisms are arranged in a plurality of groups, the bottoms of the clamping mechanisms are assembled at the top of the foundation frame through sliding mechanisms, the clamping mechanisms are vertically arranged at the top of the foundation frame, the clamping mechanisms are arranged at intervals in the length direction of the foundation frame, and the assembling clamping mechanisms are provided with mutually independent displacement driving mechanisms at the top of the foundation frame;
each assembly clamping mechanism is provided with a clamping ring frame, a clamping space which is arranged above the foundation frame and has a contour structure larger than the outer contour of the machine body to be clamped is arranged in the clamping ring frame, a plurality of groups of radially adjustable jacking components are connected to the periphery of the clamping ring frame corresponding to the radial direction of the clamping space, and the jacking components are distributed at intervals around the periphery of the clamping ring frame;
the machine body to be clamped is arranged in the clamping space of the clamping ring frame corresponding to the clamping mechanism in a penetrating manner, and the machine body is clamped and fixed in the clamping space by extending into the clamping space in the radial direction corresponding to the jacking component.
The technical measures are aimed at the particularity of the small general aircraft, the foundation frame which can be adjusted in a height lifting manner and can be displaced relatively is taken as a bearing foundation of the airframe to be maintained, the airframe to be maintained is clamped and fixed on the top of the foundation frame and the corresponding clamping mechanism which can be displaced in a sliding manner, the clamping of the airframe to be maintained is fixed stably and safely, the clamping is used as a maintenance work platform, the maintenance work is flexible, the maintenance process is easy and convenient, and the practicability is strong in the maintenance work of the airframe of the small general aircraft.
As one of the preferable schemes, the foundation frame mainly comprises a plurality of upright posts and inclined struts connected between the adjacent upright posts, and is of a hollowed frame structure;
the foundation frame is provided with a lower side base frame and an upper side base frame;
the bottom ends of the upright posts of the lower base frame are respectively connected with travelling wheels;
a lifting mechanism of a lifting adjusting and hydraulic actuating cylinder structure is connected between the top ends of the upright posts of the lower side base frame and the bottom ends of the corresponding upright posts of the upper side base frame;
and each lifting mechanism between the lower side base frame and the upper side base frame synchronously performs lifting action.
The foundation frame of the technical measure has simple structure, and is beneficial to reducing weight and reducing materials while meeting structural strength. In addition, the height lifting adjustment and the relative displacement process are stable and reliable.
Further, at the top of the upper base frame, a plurality of groups of supporting beams are distributed at intervals along the length direction of the foundation frame, and each group of supporting beams is distributed and formed along the width direction of the foundation frame;
each group of supporting beams are formed at the top of the upper base frame in a protruding mode and are used for fixedly bearing the sliding mechanism.
The foundation frame of the technical measure has simple structure, meets the structural strength, is beneficial to reducing the weight and the materials, and has simple structure.
Still further, the said slipping mechanism mainly comprises slide rail, sliding sleeve and bearing plate;
the bearing plate is fixed on a bolster at the top of the foundation frame;
the two groups of sliding rails are distributed on the bearing plate at intervals along the two sides of the width direction of the foundation frame, and the two groups of sliding rails are distributed on the bearing plate along the length direction of the foundation frame for forming;
the sliding sleeves are divided into two groups corresponding to the sliding rails, each group is multiple, and the two groups of sliding sleeves are assembled on the corresponding sliding rails in a linear sliding structure; at least one sliding sleeve in each group is fixedly connected with the bottom of the corresponding clamping mechanism.
The sliding mechanism adopting the technical measures has simple and stable assembly structure between the clamping mechanism and the foundation frame, ensures that the corresponding clamping mechanism is stably assembled and operated on the foundation frame, and is beneficial to easy disassembly and maintenance of the sliding mechanism.
Further, the bearing plates are divided into a plurality of bearing beams corresponding to the foundation frame, each bearing plate is fixed on the corresponding bearing beam, and each bearing plate is arranged at the top of the foundation frame at intervals along the length direction of the foundation frame;
the outer contour area of each bearing plate can cover the current bearing joist.
The bearing plate adopting the technical measures is beneficial to reducing the material consumption of the bearing plate and the weight of the sliding mechanism while meeting the requirements of stably and reliably supporting the sliding rail, thereby being beneficial to the light weight of the formed operation platform and having simple structure.
Further, the sliding rail mainly comprises an upper guide post and a lower supporting base;
the section outline of the guide post is of a circular structure;
the cross section outline of the supporting base is of an inverted T-shaped structure with a narrow upper part and a wide lower part, the width of the upper part of the supporting base is smaller than the diameter of the guide post, the width of the lower part of the supporting base is larger than the diameter of the guide post, the upper part and the lower part of the supporting base are formed on the same side in a smooth transition mode through a curved surface structure, and a jogged sliding groove for enabling the opening edge part of the sliding sleeve to be embedded is formed between the lower part of the supporting base and the guide post.
The sliding rail of the technical measure has stable and reliable support on the bearing plate, can bear large weight, and can reliably limit the sliding sleeve by being matched with the sliding sleeve, so that the sliding sleeve can stably slide on the sliding rail.
As one of the preferable schemes, the displacement driving mechanism is a hydraulic actuator cylinder structure which can be adjusted in a telescopic way, one end of the displacement driving mechanism is connected with the foundation frame, and the other end of the displacement driving mechanism is connected with the corresponding clamping mechanism;
the displacement driving mechanism is arranged at the arrangement position between the foundation frame and the corresponding clamping mechanism, and avoids the clamping space on the clamping mechanism.
The technical measures are to drive the slippage of the clamping mechanism on the foundation frame on the premise of not influencing the clamping of the machine body, and the driving moment is large.
As one of the preferable schemes, the bottom of the clamping ring frame of the clamping mechanism is connected with a bottom plate, the bottom plate transversely extends out from one side of the bottom of the clamping ring frame, and the bottom plate is used for connecting the sliding mechanism;
two groups of diagonal braces are connected between the clamping ring frame and the bottom plate, the two groups of diagonal braces are arranged on the left side and the right side of the clamping space of the clamping ring frame and avoid the clamping space, and a triangular supporting and matching structure is formed among the diagonal braces, the bottom plate and the clamping ring frame;
and each propping assembly on the clamping ring frame is arranged on the same side elevation of the clamping ring frame, and the arrangement positions of the propping assemblies on the clamping ring frame are opposite to the inclined struts.
The technical measures are aimed at the specificity of vertical arrangement of the clamping ring frame on the foundation frame, the bottom plate is used as the arrangement foundation of the clamping ring frame and the diagonal braces, the reliable triangular support is formed for the clamping ring frame, the stability of vertical arrangement of the clamping ring frame is ensured, the stress intensity of the clamping ring frame is improved, the diagonal braces cannot interfere with the clamping space, and meanwhile, the convenience and the stability of assembly of the clamping ring frame on the foundation frame are also improved.
As one of the preferable schemes, the jacking components circumferentially arranged on the clamping ring frame are eight groups, and the eight groups of jacking components are arranged in a Zhou Yimi-shaped direction of the clamping ring frame;
each group of jacking components mainly comprises a hydraulic actuator cylinder, a jacking rod and a rubber disc; the cylinder body of the hydraulic actuator cylinder is fixed on the clamping ring frame, and the piston rod of the hydraulic actuator cylinder stretches/contracts towards the clamping space; the jacking rod is connected to the outer end of the piston rod; the rubber disc is connected to the outer end of the jacking rod and used for contacting a machine body to be clamped;
the jacking component is fixed on the corresponding vertical face of the clamping ring frame through a jacking support;
the jacking support is formed on the corresponding vertical face of the clamping ring frame in a protruding structure, and a abdication groove formed on the clamping ring frame in a concave structure is formed at the clamping space edge part at the inner side of the jacking support;
the jacking component is fixed on the clamping ring frame through the jacking support, is matched with the corresponding vertical face of the clamping ring frame at intervals, and the stretching/shrinking action track of the jacking component is located in the coverage range of the abdicating groove.
On the one hand, the technical measures are beneficial to guaranteeing the stability of rigid clamping and fixing; the balance of stress of the machine body in the rigid clamping and fixing process is improved; the three-side clamping machine body has large clamping moment and good stability; the clamping machine body can be well protected, and clamping damage in the jacking process is avoided; the operation space of the jacking component on the clamping ring frame is sufficient, interference of the clamping ring frame is basically avoided, and operability is high.
As one of the preferred embodiments, the fuselage is a barrel structure of a fuselage component of a cosna 172 aircraft or a PA-44-180 aircraft with wings and landing gear removed.
The beneficial technical effects of the utility model are as follows: the technical measures are aimed at the particularity of the small general aircraft, the foundation frame which can be adjusted in a height lifting manner and can be displaced relatively is taken as a bearing foundation of the to-be-maintained aircraft body, the to-be-maintained aircraft body is clamped and fixed on the corresponding clamping mechanism which is arranged at the top of the foundation frame and can be displaced in a sliding manner, the clamping of the to-be-maintained aircraft body is fixed stably and safely, the clamping is taken as a maintenance operation platform (which is equivalent to a maintenance dock of the small general aircraft to a certain extent), the flexible realization of the maintenance operation is facilitated when the to-be-maintained aircraft body is subjected to the maintenance operation, the maintenance process is easy and convenient, and the practicability is strong in the maintenance operation of the small general aircraft body.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic structural view of the clamping mechanism in fig. 1.
FIG. 3 is a schematic cross-sectional view of the sliding mechanism of FIG. 1.
The meaning of the symbols in the figures: 1-a foundation frame; 11-a lower base frame; 12-a travelling wheel; 13-upper base frame; 14-bolster; 15-a lifting mechanism; 2-a clamping mechanism; 21-a clamping ring frame; 22-a bottom plate; 23-diagonal bracing; 24-tightening the assembly; 3-a sliding mechanism; 31-a slide rail; 32-sliding sleeve; 33-carrier plate.
Detailed Description
The utility model relates to maintenance equipment of a small general-purpose aircraft, in particular to an operation platform for maintenance of a fuselage of the small general-purpose aircraft, and the technical contents of the main body of the utility model are described in detail in a plurality of embodiments. Wherein, embodiment 1 is combined with the attached drawings of the specification, namely, fig. 1, fig. 2 and fig. 3 to clearly and specifically explain the technical scheme of the utility model; other embodiments, although not drawn separately, may still refer to the drawings of embodiment 1 for its main structure.
It is to be noted here in particular that the figures of the utility model are schematic, which for the sake of clarity have simplified unnecessary details in order to avoid obscuring the technical solutions of the utility model which contribute to the state of the art.
Example 1
Referring to fig. 1, 2 and 3, the utility model relates to a maintenance work platform for maintenance work of a small general aircraft fuselage, which comprises a foundation frame 1, a clamping mechanism 2 and a sliding mechanism 3.
Specifically, the small general aircraft disclosed by the utility model refers to a model with a fuselage length of about 6-8 m, a fuselage height of about 2.3-2.8 m, a wingspan of about 8-11 m, an empty weight of about 350-500 kg and a seat of about 2-6 seats, such as a cessna 172 aircraft or a PA-44-180 aircraft. The fuselage according to the utility model generally refers to a fuselage barrel structure from which landing gear, wings, etc. are removed.
The foundation frame 1 has a rectangular frame structure, and includes a lower base frame 11 and an upper base frame 13. The lower base frame 11 mainly comprises a plurality of stand columns (six stand columns in this embodiment, three stand columns are respectively arranged left and right) and inclined struts fixedly connected between the adjacent stand columns, wherein the inclined struts between the adjacent stand columns are two stand columns which are arranged in a crossed manner, and a triangular supporting structure is formed between the two inclined struts and the corresponding stand columns, so that a cuboid and hollowed frame structure is formed. The bottom ends of the upright posts of the lower base frame 11 are respectively connected with travelling wheels 12, so that the walking wheels can be pushed and carried out on the bearing ground; the travelling wheel 12 adopts a self-locking universal wheel structure, and is similar to a scaffold commonly used in construction operation.
The upper base frame 13 and the lower base frame 11 are of the same specification structure, that is, the upper base frame 13 mainly comprises a plurality of stand columns (six stand columns in the embodiment) which are arranged at intervals, and inclined struts which are fixedly connected between the adjacent stand columns, wherein the two inclined struts between the adjacent stand columns are arranged in a crossed manner, and a triangular supporting structure is formed between the two inclined struts and the corresponding stand columns, so that a cuboid and hollowed-out frame structure is formed. The arrangement distance between each adjacent upright post of the upper base frame 13 in the length direction and the width direction is the same as the arrangement distance between each adjacent upright post of the lower base frame 11 in the length direction and the width direction, and when the upper base frame 13 is stacked on the lower base frame 11, the corresponding upright posts can be substantially coaxially matched.
At the top of the upper base 13, a plurality of sets of joists 14 (three sets in this embodiment, two sets in a spaced arrangement) are arranged at intervals along the length direction of the upper base 13. Each group of supporting beams 14 are formed along the width direction of the upper side frame 13, and two ends of each supporting beam 14 are fixedly connected with the tops of the left side and the right side of the upper side frame 13. Each set of joists 14 is formed by projection at the top of the upper base frame 13, the height of projection of each set of joists 14 at the top of the upper base frame 13 being substantially in the same plane. Each group of joists 14 serves as a load-bearing foundation for the fixed connection of the following slip mechanisms 3 to the foundation frame 1.
The lower base frame 11 and the upper base frame 13 are connected in an up-down position by a lifting mechanism 15, so that the height of the upper base frame 13 on the lower base frame 11 can be adjusted by the lifting mechanism 15. More specifically, a lifting mechanism 15 with a lifting adjustment and hydraulic actuating cylinder structure is connected between the top ends of the upright posts of the lower base frame 11 and the bottom ends of the corresponding upright posts of the upper base frame 13, the cylinder body of the hydraulic actuating cylinder is connected with the upright posts of the upper base frame 13/lower base frame 11, and the piston rod of the hydraulic actuating cylinder is connected with the corresponding upright posts of the lower base frame 11/upper base frame 13. In order to ensure the stability and reliability of the lifting adjustment of the upper base frame 13 on the upper base frame 11, the lifting mechanisms 15 between the lower base frame 11 and the upper base frame 13 synchronously perform lifting actions, that is, the hydraulic cylinders synchronously operate.
The sliding mechanism 3 mainly comprises a sliding rail 31, a sliding sleeve 32 and a bearing plate 33. The bearing plates 33 are divided into a plurality of corresponding groups of joists 14 on the foundation frame 1, that is, each bearing plate 33 corresponds to one group of joists 14, and the outer contour area of each bearing plate 33 can cover the corresponding joist 14. Each bearing plate 33 is of a hollowed-out flat plate structure, and has structural strength, and meanwhile, the weight and the material consumption are reduced. Each of the bearing plates 33 is fixedly connected to the corresponding joist 14 at the top of the foundation frame 1, so that the currently located joist 14 is basically fully covered in the up-down position, and the bearing plates 33 are arranged at the top of the foundation frame 1 at intervals along the length direction of the foundation frame 1.
The two sets of sliding rails 31 are arranged on the bearing plates 33 at intervals along two sides of the width direction of the foundation frame 1, and each set of sliding rails 31 connects a plurality of bearing plates 33 in series in the length direction of the foundation frame 1, namely, the two sets of sliding rails 31 are respectively and fixedly connected on each bearing plate 33, and are arranged on the bearing plates 33 along the length direction of the foundation frame 1.
Each set of slide rails 31 is mainly composed of an upper guide post and a lower support base. The cross-sectional profile of the guide post is substantially circular in configuration. The cross section outline of the supporting base is of an inverted T-shaped structure with a narrow upper part and a wide lower part, the upper part of the supporting base is smaller than the diameter of the guide post, and the lower part of the supporting base is larger than the diameter of the guide post; the upper part of the supporting base and the bottom of the guide post are integrally formed to support the guide post; the lower part of the supporting base is used for fixedly connecting with the bearing plate 33; the upper part and the lower part of the supporting base are formed on the same side in a smooth transition mode through an arc-shaped curved surface structure. A fitting groove into which the opening edge of the slide bush 32 can be fitted is formed in the upper side portion of the support base between the lower portion of the support base and the guide post.
The sliding sleeves 32 are divided into two groups corresponding to the sliding rails 31, and each group is multiple. The inner hole of each sliding sleeve 32 is of a C-shaped structure with an opening at the bottom, the width of the opening part is smaller than the maximum diameter of the inner hole, and the outline structure and the width of the opening part are matched with the embedded sliding grooves on the two sides of the sliding rail 31. The two sets of sliding sleeves 32 are sleeved on the corresponding sliding rail 31 in a linear sliding structure, the corresponding sliding rail 31 is reliably surrounded, and the opening edge parts of the sliding sleeves 32 are just embedded into the embedded sliding grooves on the two sides of the sliding rail 31. At least one sliding sleeve 32 (two in this embodiment) in each group is fixedly connected to the bottom of the corresponding clamping mechanism 2 described below.
The clamping mechanisms 2 are multiple groups, and three groups are adopted in the embodiment. One of them will be described in detail below.
The clamping mechanism 2 mainly comprises a clamping ring frame 21 and a plurality of groups of jacking assemblies 24. The clamping ring frame 21 is an annular structure (irregular ring) with a closed periphery and a hollowed center, and the hollow space of the clamping ring frame forms a clamping space for wearing and installing a machine body to be clamped. The molding outline of the clamping space corresponds to the outline of the corresponding part of the body to be clamped, the width and the height of the clamping space are both larger than those of the outline of the corresponding part of the body to be clamped in order to adapt to different models, and when the body to be clamped is penetrated in the clamping space in the center, the periphery of the body and the inner edge of the clamping ring frame are basically matched at equal intervals.
The clamping ring frame 21 is vertically fixed on top of one end of the bottom plate 22 and is basically vertically matched with the bottom plate 22. The length direction of the bottom plate 22 corresponds to the mounting direction of the fuselage to be clamped. The left and right sides of the bottom plate 22 are connected with corresponding sliding sleeves in the two groups of sliding sleeves 32 of the sliding mechanism 3, in this embodiment, the two sliding sleeves 32 in each group are connected with the bottom plate 22, and are arranged at intervals at the bottom of the bottom plate 22.
Two groups of diagonal braces 23 are connected between the other end of the bottom plate 22 in the length direction and the top of the clamping ring frame 21. The two groups of diagonal braces 23 are arranged at the arrangement position of one side of the vertical face of the clamping ring frame 21, and the clamping space on the clamping ring frame 21 is staggered, namely, the two groups of diagonal braces 23 are arranged at the left side and the right side of the width direction of the clamping space, so that the wearing direction of the clamping space is avoided. In the above structure, the bottom end of the diagonal brace 23 is fixedly connected to the top of one end of the bottom plate 22, and the top end of the diagonal brace 23 is fixedly connected to the top of the corresponding vertical surface of the clamping ring frame 21, so that the bottom plate 22, the diagonal brace 23 and the clamping ring frame 21 form a stable triangular supporting and matching structure. For weight saving, one or more lightening holes may be formed in the bottom plate 22 between the diagonal braces 23 and the clamping ring frame 21, and of course, the lightening holes should not be formed to affect the structural strength of the bottom plate 22.
The jacking assemblies 24 are eight groups of the same specification. Each set of jack assemblies 24 consists essentially of a hydraulic ram, jack rod and rubber disc, wherein:
the hydraulic cylinder acts as a power source for the extension/retraction movement, its cylinder acts as a seat fixed to the corresponding seat of the gripping ring frame 21, and its piston rod acts as an extension/retraction movement;
the jacking rod is connected to the outer end of the piston rod and used for extending the piston rod, and the connection part of the jacking rod and the piston rod is connected in a sleeved mode through a spline sleeve to form detachable connection;
the rubber disc is of a rubber vacuum chuck structure, and a mechanical sensor used for monitoring the propping force is arranged in the rubber disc; the rubber disk is connected with the outer end of the jacking rod in a sealing way through a nut component and the like and is used for contacting a machine body to be clamped in a vacuum chuck mode.
The expansion/contraction of the eight sets of jack assemblies 24 described above is synchronized, preferably by the hydraulic control unit.
The clamping ring frame 21 is arranged on a side vertical surface of the diagonal brace 23 opposite to each other, and eight jacking supports are arranged on a center right above the ring Zhou Anzhao, a center right below the ring Zhou Anzhao, a center right left side, a center right side, an upper left Fang Xiejiao, a lower left Fang Xiejiao, an upper right oblique angle and a lower right oblique angle by taking the clamping space as a circle center. Each of the tightening supports is formed in a convex structure on the corresponding vertical face of the clamping ring frame 21, and of course, the tightening support at the center right below should be staggered from the ground edge of the clamping ring frame 21 so as not to interfere with the position. The center of each propping support is provided with a penetrating hole of the propping assembly 24, and the axle center of the penetrating hole faces to the center of the clamping space on the clamping ring frame 21.
The eight groups of tightening assemblies 24 are respectively arranged and fixed in corresponding tightening supports on the clamping ring frame 21 in a penetrating manner by a structure that a rubber disc is inwards and one end of a hydraulic actuator cylinder is outwards. That is, each set of the jack assemblies 24 is fixed to the corresponding jack mount of the clamping ring frame 21 with the cylinder body of the hydraulic cylinder, the piston rod of which performs the extending/retracting motion toward the clamping space.
Thus, eight sets of jacking assemblies 24 are mounted on the same side elevation of clamping ring frame 21 opposite to diagonal braces 23 described above. These tightening members 24 are arranged in a zigzag orientation around the same side elevation of the clamping ring frame 21, and two sets of tightening members 24 in opposite orientations are arranged in a substantially symmetrical configuration, for example:
-a central arranged jack assembly directly above and a central arranged jack assembly directly below, in a substantially symmetrical arrangement;
the propping assembly is arranged at the center of the right side and is basically in a symmetrical arrangement structure with the propping assembly arranged at the center of the right side;
the jacking components which are arranged at the upper left Fang Xiejiao and the lower right are arranged at an oblique angle and are basically in a symmetrical arrangement;
the lower left Fang Xiejiao is arranged with the upper right oblique angle, and is basically symmetrically arranged.
The above-mentioned each jack assembly 24 fixed in place on the clamping ring frame 21 is respectively matched with the corresponding vertical face of the clamping ring frame 21 with a spacing, which requires that the protrusion height of the jack support is enough to accommodate the jack assembly 24, and the arrangement position of the penetrating holes on the jack support is kept with a sufficient spacing with the corresponding vertical face of the clamping ring frame 21, thus facilitating the assembly, disassembly and maintenance replacement of the jack assembly 24. Of course, the raised height of the tightening support on the corresponding vertical surface of the clamping ring frame 21 is too high, which affects the raised structural strength of the tightening support on the clamping ring frame 21, and too low can easily cause the tightening component 24 to interfere with the clamping ring frame 21 in position, for this purpose, a yielding groove formed by a concave structure is formed at the inner edge of the clamping ring frame 21 at the clamping space edge of the inner side of the tightening support (i.e. the inner edge of the clamping ring frame 21 of the tightening support), the maximum depth of the yielding groove is flush with the inner surface of the corresponding tightening support, and the width of the yielding groove is larger than the maximum outer diameter of the tightening component 24, so that the extending/retracting action track of the tightening component 24 is always within the coverage range of the yielding groove.
As can be seen from the above structure, a plurality of radially adjustable tightening members 24 are radially connected to the clamping space corresponding to the circumference of the clamping ring frame 21, and these tightening members 24 are arranged on the ring Zhou Jianju of the clamping ring frame 21.
When the machine body to be clamped is clamped and fixed:
firstly, hoisting a machine body through a crane, wherein the machine body is arranged in a clamping space of a clamping ring frame 21 in a penetrating manner until reaching a clamping position required by setting;
secondly, adjusting the relative position of the machine body in the clamping space to enable the machine body to meet the designed clamping requirement precision;
then, starting hydraulic forward thrust of the jacking assemblies 24, wherein each jacking assembly 24 basically synchronously stretches inwards, contacts and clamps the machine body through respective rubber discs, and monitors the clamping force of the jacking assembly 24 on the machine body in real time through a mechanical sensor in the process until the design requirement is met;
thus, the machine body is clamped and fixed.
When clamping needs to be released:
firstly, hanging a machine body through a crane;
secondly, starting hydraulic reverse thrust of the jacking assemblies 24, basically synchronously contracting outwards by the jacking assemblies 24, loosening the clamping of the machine body and forming a movable space of the machine body;
finally, the fuselage is lifted out of the clamping space of the clamping ring frame 21.
The multiple groups of clamping mechanisms 2 with the structure are connected with the sliding mechanisms 3 through the bottoms of the clamping mechanisms 2, namely, the clamping mechanisms 2 are assembled at the top of the foundation frame 1 through the sliding mechanisms 3, the clamping mechanisms 2 are vertically arranged at the top of the foundation frame 1, the clamping mechanisms 2 are arranged at intervals in the length direction of the foundation frame 1, and the assembling clamping mechanisms 2 are provided with mutually independent displacement driving mechanisms at the top of the foundation frame 1.
The displacement driving mechanism adopts a telescopic hydraulic actuating cylinder structure, a cylinder body of the hydraulic actuating cylinder is connected with a corresponding part, such as a side supporting beam, on the foundation frame, a piston rod of the hydraulic actuating cylinder is connected with the bottom of the corresponding clamping mechanism, and an extension rod can be additionally arranged if the piston rod is not long enough, so that the corresponding clamping mechanism slides on the foundation frame through the sliding mechanism under the thrust action of the hydraulic actuating cylinder, and the relative position is easily adjusted. The displacement driving mechanism is arranged between the foundation frame 1 and the corresponding clamping mechanism 2, so that the clamping space on the clamping mechanism 2 is avoided, and the position interference caused by the clamping of the machine body is prevented.
The displacement driving mechanisms of the assembly clamping mechanisms 2 are synchronously or differentially controlled according to the operation requirement, for example, when the adjacent clamping mechanisms 2 fix the same section of machine body, synchronous displacement action is required to be kept during displacement; if two sections of machine bodies which are separated are fixed by the adjacent clamping mechanisms, when the machine bodies are displaced, the displacement action is independently carried out according to the specific requirement of maintenance of the two sections of machine bodies.
Example 2
Other contents of this embodiment are the same as embodiment 1, except that:
the rubber disc of the jacking component is a common rubber pad.
Example 3
Other contents of this embodiment are the same as embodiment 1, except that:
each group of diagonal braces between the clamping ring frame and the bottom plate is two, the bottom ends of the two diagonal braces are intensively fixed at the top of one end of the bottom plate, the top ends of the two diagonal braces are distributed in a staggered manner in the height and the low position of the diagonal braces of the corresponding vertical face of the clamping ring frame (namely, the top end of one diagonal brace is fixed at the top of the corresponding vertical face of the clamping ring frame, and the top end of the other diagonal brace is fixed at the waist of the corresponding vertical face of the clamping ring frame), and the diagonal brace strength is higher.
Of course, the number of struts per set of diagonal struts may also be other, such as three, four, etc., based on this embodiment. Typically, one or two are sufficient.
Example 4
Other contents of this embodiment are the same as embodiment 1, except that:
-eliminating the tightening abutment on the clamping ring frame;
the thickness of the clamping ring frame is thickened, and a penetrating hole of the propping assembly is formed in a corresponding position in the center of the thickness of the clamping ring frame, namely the clamping ring frame is a propping support, and the propping support is the clamping ring frame.
Example 5
Other contents of this embodiment are the same as embodiment 1, except that:
the bearing plate of the sliding mechanism is an integral plate which can cover the top of the foundation frame.
The above examples are only intended to illustrate the present utility model, not to limit it.
Although the utility model has been described in detail with reference to the above embodiments, it will be understood by those of ordinary skill in the art that: it can be modified or some of the technical features can be replaced with equivalents; such modifications and substitutions do not depart from the spirit and scope of the utility model.
Claims (10)
1. The utility model provides a small-size general aircraft fuselage maintenance is with operation platform which characterized in that:
the working platform comprises a foundation frame (1) and a clamping mechanism (2);
the foundation frame (1) is of a cuboid structure and is adjustable in height in a lifting manner, and a plurality of groups of travelling wheels (12) are arranged at the bottom of the foundation frame (1);
the clamping mechanisms (2) are arranged in a plurality of groups, the bottoms of the clamping mechanisms (2) are assembled at the top of the foundation frame (1) through sliding mechanisms (3), the clamping mechanisms (2) are vertically arranged at the top of the foundation frame (1), the clamping mechanisms (2) are arranged at intervals in the length direction of the foundation frame (1), and the assembling clamping mechanisms (2) are provided with mutually independent displacement driving mechanisms at the top of the foundation frame (1);
each assembly clamping mechanism (2) is provided with a clamping ring frame (21), the clamping ring frame (21) is internally provided with clamping spaces which are arranged above the foundation frame (1) and have a contour structure larger than the outer contour of a machine body to be clamped, a plurality of groups of radially adjustable jacking components (24) are connected to the periphery of the clamping ring frame (21) corresponding to the radial direction of the clamping spaces, and the jacking components (24) are distributed at intervals around the periphery of the clamping ring frame (21);
the machine body to be clamped is arranged in the clamping space of the clamping ring frame (21) corresponding to the clamping mechanism (2) in a penetrating manner, and the machine body is clamped and fixed in the clamping space by the radial extension of the corresponding jacking component (24).
2. The small general aircraft fuselage maintenance work platform of claim 1, wherein:
the foundation frame (1) mainly comprises a plurality of upright posts and inclined struts connected between the adjacent upright posts, and is of a hollowed-out frame structure;
the foundation frame (1) is provided with a lower side base frame (11) and an upper side base frame (13);
the bottom ends of the upright posts of the lower base frame (11) are respectively connected with travelling wheels (12);
lifting mechanisms (15) with lifting adjustment and hydraulic actuating cylinder structures are connected between the top ends of the upright posts of the lower side base frame (11) and the bottom ends of the corresponding upright posts of the upper side base frame (13);
the lifting mechanisms (15) between the lower base frame (11) and the upper base frame (13) synchronously perform lifting actions.
3. The small general-purpose aircraft fuselage maintenance work platform of claim 2, wherein:
a plurality of groups of supporting beams (14) are distributed at the top of the upper base frame (13) at intervals along the length direction of the foundation frame (1), and each group of supporting beams (14) is distributed and formed along the width direction of the foundation frame (1);
each group of joists (14) is formed by protruding at the top of the upper side frame (13) and is used for fixedly bearing the sliding mechanism (3).
4. A small general aircraft fuselage maintenance work platform according to claim 3, wherein:
the sliding mechanism (3) mainly comprises a sliding rail (31), a sliding sleeve (32) and a bearing plate (33);
the bearing plate (33) is fixed on a bolster (14) at the top of the foundation frame (1);
the two groups of sliding rails (31) are arranged on the bearing plate (33) at intervals along the two sides of the width direction of the foundation frame (1), and the two groups of sliding rails (31) are arranged on the bearing plate (33) along the length direction of the foundation frame (1) for forming;
the sliding sleeves (32) are divided into two groups corresponding to the sliding rails (31), each group is multiple, and the two groups of sliding sleeves (32) are assembled on the corresponding sliding rails (31) in a linear sliding structure; at least one sliding sleeve (32) in each group is fixedly connected with the bottom of the corresponding clamping mechanism (2).
5. The small general-purpose aircraft fuselage maintenance work platform of claim 4, wherein:
the bearing plates (33) are divided into a plurality of corresponding supporting beams (14) on the foundation frame (1), each bearing plate (33) is fixed on the corresponding supporting beam (14), and each bearing plate (33) is arranged at the top of the foundation frame (1) at intervals along the length direction of the foundation frame (1);
the outer contour area of each bearing plate (33) can cover the currently located joist (14).
6. The small general-purpose aircraft fuselage maintenance work platform of claim 4, wherein:
the sliding rail (31) mainly comprises an upper guide post and a lower supporting base;
the section outline of the guide post is of a circular structure;
the cross-section profile of the support base is of an inverted T-shaped structure with a narrow upper part and a wide lower part, the width of the upper part of the support base is smaller than the diameter of the guide post, the width of the lower part of the support base is larger than the diameter of the guide post, the upper part and the lower part of the support base are formed on the same side in a smooth transition mode through a curved surface structure, and a jogged sliding groove for embedding the opening edge part of the sliding sleeve (32) is formed between the lower part of the support base and the guide post at the side part of the upper part of the support base.
7. The small general aircraft fuselage maintenance work platform of claim 1, wherein:
the displacement driving mechanism is of a telescopic hydraulic actuator cylinder structure, one end of the displacement driving mechanism is connected with the foundation frame (1), and the other end of the displacement driving mechanism is connected with the corresponding clamping mechanism (2);
the displacement driving mechanism is arranged at an arrangement position between the foundation frame (1) and the corresponding clamping mechanism (2), and avoids a clamping space on the clamping mechanism (2).
8. The small general aircraft fuselage maintenance work platform of claim 1, wherein:
a bottom plate (22) is connected to the bottom of a clamping ring frame (21) of the clamping mechanism (2), the bottom plate (22) transversely extends out from one side of the bottom of the clamping ring frame (21), and the bottom plate (22) is used for being connected with the sliding mechanism (3);
two groups of diagonal braces (23) are connected between the clamping ring frame (21) and the bottom plate (22), the two groups of diagonal braces (23) are arranged on the left side and the right side of a clamping space of the clamping ring frame (21) and avoid the clamping space, and a triangular supporting matching structure is formed among the diagonal braces (23), the bottom plate (22) and the clamping ring frame (21);
each propping assembly (24) on the clamping ring frame (21) is arranged on the same side elevation of the clamping ring frame (21), and the arrangement positions of the propping assemblies (24) on the clamping ring frame (21) are opposite to the diagonal braces (23).
9. The small general aircraft fuselage maintenance work platform of claim 1 or 8, wherein:
the clamping ring frame (21) is characterized in that eight groups of jacking components (24) are circumferentially arranged, and the eight groups of jacking components (24) are arranged in a Zhou Yimi-shaped direction of a ring of the clamping ring frame (21);
each group of jacking components (24) mainly comprises a hydraulic actuator cylinder, a jacking rod and a rubber disc; the cylinder body of the hydraulic actuator cylinder is fixed on the clamping ring frame (21), and the piston rod of the hydraulic actuator cylinder stretches/contracts towards the clamping space; the jacking rod is connected to the outer end of the piston rod; the rubber disc is connected to the outer end of the jacking rod and used for contacting a machine body to be clamped;
the jacking component (24) is fixed on the corresponding vertical face of the clamping ring frame (21) through a jacking support;
the jacking support is formed on the corresponding vertical face of the clamping ring frame (21) in a protruding structure, and a clamping space edge part at the inner side of the jacking support is provided with a abdication groove formed on the clamping ring frame (21) in a concave structure;
the jacking component (24) is fixed on the clamping ring frame (21) through the jacking support, the jacking component is matched with the corresponding vertical face of the clamping ring frame (21) at intervals, and the stretching/shrinking action track of the jacking component (24) is located in the coverage range of the yielding groove.
10. The small general aircraft fuselage maintenance work platform of claim 1, wherein:
the fuselage is a barrel structure of a fuselage component removal wing and landing gear of a cosna 172 aircraft or a PA-44-180 aircraft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320206995.1U CN219705077U (en) | 2023-02-14 | 2023-02-14 | Small-size general aircraft fuselage maintenance is with operation platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320206995.1U CN219705077U (en) | 2023-02-14 | 2023-02-14 | Small-size general aircraft fuselage maintenance is with operation platform |
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|---|---|
| CN219705077U true CN219705077U (en) | 2023-09-19 |
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| CN202320206995.1U Active CN219705077U (en) | 2023-02-14 | 2023-02-14 | Small-size general aircraft fuselage maintenance is with operation platform |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117104526A (en) * | 2023-09-21 | 2023-11-24 | 捷中鲨鱼(沧州)飞机制造有限公司 | Static test supporting device for front fuselage of light aircraft |
| CN117104526B (en) * | 2023-09-21 | 2024-05-28 | 捷中鲨鱼(沧州)飞机制造有限公司 | Static test supporting device for front fuselage of light aircraft |
-
2023
- 2023-02-14 CN CN202320206995.1U patent/CN219705077U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117104526A (en) * | 2023-09-21 | 2023-11-24 | 捷中鲨鱼(沧州)飞机制造有限公司 | Static test supporting device for front fuselage of light aircraft |
| CN117104526B (en) * | 2023-09-21 | 2024-05-28 | 捷中鲨鱼(沧州)飞机制造有限公司 | Static test supporting device for front fuselage of light aircraft |
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